Provision full VPC on AWS using Resource Controller

[chungers]

This PR

• Cleans up the AWS plugin to
  • Deprecate logrus
  • Honor the properties=true bool flag when Describing instances to return properties of resources
  • Make proper attachment of subnets to routes if specified.
    + Adds a full mystack.yml that will create a full VPC with 1 internet gateway and 2 subnets
    + Adds an inventory.yml for configuring the inventory controller which will monitor all the resources created by the resource controller (as driven by mystack.yml) and make all the resource properties (e.g. VpcId) be available in metadata form.
    + Updates the compute instance / spot instance playbook files to look at the metadata in suggesting default values such as availability zones and subnet ids.

See examples/playbook/aws/README.md for how to use.

Signed-off-by: David Chung david.chung@docker.com

[GordonTheTurtle]

Please sign your commits following these rules:
https://github.com/moby/moby/blob/master/CONTRIBUTING.md#sign-your-work
The easiest way to do this is to amend the last commit:

$ git clone -b "aws-resources" git@github.com:chungers/infrakit.git somewhere
$ cd somewhere
$ git rebase -i HEAD~842354174864
editor opens
change each 'pick' to 'edit'
save the file and quit
$ git commit --amend -s --no-edit
$ git rebase --continue # and repeat the amend for each commit
$ git push -f

Amending updates the existing PR. You DO NOT need to open a new one.

[codecov]

Codecov Report

Merging #890 into master will decrease coverage by 0.2%.
The diff coverage is 1.72%.

@@            Coverage Diff             @@
##           master     #890      +/-   ##
==========================================
- Coverage   48.66%   48.46%   -0.21%     
==========================================
  Files          85       84       -1     
  Lines        7790     7812      +22     
==========================================
- Hits         3791     3786       -5     
- Misses       3692     3718      +26     
- Partials      307      308       +1

Impacted Files	Coverage Δ
...ws/plugin/instance/autoscaling_autoscalinggroup.go	0% <0%> (ø)	⬆️
...rovider/aws/plugin/instance/ec2_internetgateway.go	0% <0%> (ø)	⬆️
pkg/provider/aws/plugin/instance/ec2_routetable.go	0% <0%> (ø)	⬆️
pkg/provider/aws/plugin/instance/ec2_volume.go	0% <0%> (ø)	⬆️
.../provider/aws/plugin/instance/ec2_spot_instance.go	0% <0%> (ø)	⬆️
pkg/provider/aws/plugin/instance/ec2_vpc.go	0% <0%> (ø)	⬆️
pkg/provider/aws/plugin/instance/builder.go	0% <0%> (ø)	⬆️
.../provider/aws/plugin/instance/ec2_securitygroup.go	0% <0%> (ø)	⬆️
pkg/provider/aws/plugin/instance/ec2_subnet.go	0% <0%> (ø)	⬆️
pkg/provider/aws/plugin/instance/ec2_instance.go	35.21% <33.33%> (ø)	⬆️
... and 1 more

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